A simple parameterization for sensible and latent heat fluxes during unstable daytime
文献类型：会议论文
| 作者 | Lu, Jing(卢静) ; Li,Zhao-Liang ; Wu,Hua ; Tang,Bohui ; Labed,Jelila |
| 出版日期 | 2012 |
| 会议名称 | Progress in Electromagnetics Research Symposium, PIERS 2012 Moscow |
| 会议日期 | August 19, 2012 - August 23, 2012 |
| 会议地点 | Moscow, Russia |
| 关键词 | Heat flux Mean square error Parameterization Remote sensing Surface properties Water content |
| 通讯作者 | Lu, Jing(卢静) |
| 英文摘要 | his study firstly develops a simple parameterization for sensible and latent heat fluxes under unstable conditions. The parameterization consists of some unknown variables considered as constants during the daytime and some known functions related to surface temperature and air temperature. The sensible heat flux (H) is expressed as a quadratic function of the difference between surface temperature and air temperature, and the latent heat flux (LE) is parameterized as a function of the saturated water vapor pressure at surface temperature as well as the difference between surface temperature and air temperature. The accuracy of the parameterization for H and LE is evaluated by the measurements from Yucheng station, north of China. For H, the coefficient of determination (R2) is 0.925, the root mean square error (RMSE) is 27.8W/m 2, and the bias (BIAS) is -14.2W/m2, and for LE, the R2, RMSE, and BIAS are 0.946, 24.7W/m2, and 0.5W/m 2, respectively. With the assumption that surface available energy is known, the minimization technique is used to inverse heat fluxes. The H is underestimated by 30.7W/m2, and the corresponding LE is overestimated by 30.4W/m2. The RMSEs of H and LE are 54.1 and 56.6W/m2, and R2 are 0.775 and 0.806, respectively. The method can estimate H and LE at any time during unstable daytime without the need to calculate the resistance. The remotely sensed data from the geostationary meteorological satellite can be utilized adequately by the method in the future. |
| 收录类别 | EI |
| 会议录 | Progress in Electromagnetics Research Symposium
 |
| 会议录出版者 | Electromagnetics Academy |
| 会议录出版地 | 77 Massachusetts Avenue, Room 26-305, Cambridge, MA 02139, United States |
| 语种 | 英语 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/28597]  |
| 专题 | 地理科学与资源研究所_研究生部 |
| 推荐引用方式 GB/T 7714 | Lu, Jing,Li,Zhao-Liang,Wu,Hua,et al. A simple parameterization for sensible and latent heat fluxes during unstable daytime[C]. 见:Progress in Electromagnetics Research Symposium, PIERS 2012 Moscow. Moscow, Russia. August 19, 2012 - August 23, 2012. |
入库方式： OAI收割
来源：地理科学与资源研究所
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